Home / 108,578.71-162,929.22-84,819.60

Finding the Fourth Proportional to 108,578.71, 162,929.22 and 84,819.60

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Solution

The fourth proportional to 108,578.71, 162,929.22 and 84,819.60 is: 127,277.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,578.71 : 162,929.22 = 84,819.60 : x
  2. Step 2: Convert to fraction form
    108,578.71/162,929.22 = 84,819.60/x
  3. Step 3: Cross multiply
    108,578.71x = 162,929.22 × 84,819.60
  4. Step 4: Simplify right side
    108,578.71x = 13,819,591,268.71
  5. Step 5: Solve for x
    x = 13,819,591,268.71/108,578.71
  6. Step 6: Final answer
    x = 127,277.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.